Abstract: The present invention describes a chemical vapor-phase deposition for carbon nanotube synthesis in which cement clinker is used as a ceramic matrix for anchoring transition-metal nanoparticles. Using cement clinker as nanoparticle anchoring base of transition metals allows carbon nanotubes to be generated on cement clinker particles and grains, in this way producing a kind of cement that is nanostructured with carbon nanotubes. By this process, the carbon nanotube synthesis and integration to clinker are carried out in just one continuous and large-scale stage. The process described herein can be applied to conventional cement industry whose production may be rated as tons per day. The present invention also proposes—as part of the carbon nanotube synthesis on cement clinker—several enrichment alternatives of cement clinker by using transition metals for producing such nanostructured composite, which may or not be integrated to the conventional cement industry.

Abstract: A non-aqueous drywall compound being the combination of a first component mixture of acetone, a non-aqueous liquid adhesive containing ethyl cyanoacrylate, and a powder containing calcium sulfate hemihydrate (plaster of Paris), the mixture being a pliable putty capable of adhering to gypsum wallboard or similar work surfaces. The second component of the drywall compound is an accelerator or activator containing acetone and toluene. The first component is applied to a defect in a work surface using a spreading tool and the second component is then applied to the exposed surface of the first component, such as by spraying or brushing, whereupon the drywall compound cures, hardens or sets within less than ten minutes to a state capable of being sanded into a smooth, hard surface and painted.

Abstract: Methods and compositions are provided that relate to cementing operations, including a method of cementing that may comprise providing a settable composition that may comprise wollastonite, pumice, a calcium-ion source, and water, wherein the wollastonite may be present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice, and wherein the pumice may present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice. Embodiments of the method further may comprise allowing the settable composition to set.

Abstract: Method for producing an aqueous suspension, which is based on a hydraulic binder, and a hardened binder product. According to the invention, a composition of blending agents is added in the aqueous phase into the binder, which composition comprises calcium carbonate particles having an average particle size of 2-200 nm, in order to generate an aqueous suspension and, if needed, mineral fillers are added into this suspension, in order to produce a hardening plaster or concrete mixture. Besides calcium carbonate, the composition of blending agents can comprise calcium hydrogen carbonate and meta-kaolin sinter, too.

Abstract: A self-curing concrete is provided to absorb water from atmosphere from air to achieve better hydration of cement in concrete. It solves the problem that the degree of cement hydration is lowered due to no curing or improper curing, and thus unsatisfactory properties of concrete. According to the invention, high-performance self-curing agent about 0.1˜5 wt % of cement weight of the concrete is added to concrete during mixing. The self-curing agent can absorb moisture from atmosphere and then release it to concrete. The self-curing concrete means that no curing is required for concrete, or even no any external supplied water is required after placing. The properties of this self-cured concrete of this invention are at least comparable to and even better than those of concrete with traditional curing.

Abstract: This invention discloses a system for cold bond processing of combustion ash which enhances various characteristics of the resulting cured consolidated combustion ash materials. Specifically, the invention relates to processing techniques which enhances both density and strength of the of the consolidated combustion ash materials. The invention also relates to processing techniques which control various chemical reactions which assure that certain types of minerals are formed in the proper amounts which results in a cured consolidated combustion ash material which has greater dimensional stability and enhanced resistance to degradation. Embodiments for both normal weight and light weight combustion ash aggregates are disclosed which meet various ASTM and AASHTO specifications.